The Scottish Dunface , Old Scottish Short-wool , Scottish Whiteface or Scottish Tanface was a type of sheep from Scotland . It was one of the Northern European short-tailed sheep group, and it was probably similar to the sheep kept throughout the British Isles in the Iron Age. By the mid-nineteenth century it had mostly been displaced by the Scottish Blackface and it became extinct on the mainland of Scotland in the late nineteenth century. However, several local types of Dunface survived on islands around Scotland, giving rise to or contributing to existing breeds including the Shetland , North Ronaldsay , Hebridean and Boreray .
13-865: The Scottish Dunface was a short-tailed sheep with short, fine wool. Its face was often brownish, and its fleece could be various colours: white, black, brown or dun. In most varieties the ewes were polled and the males horned , but in Hebridean populations all animals were horned, often having two or even more pairs. The sheep kept throughout the British Isles up to the Iron Age were small, variable in colour and short-tailed. From Roman times onwards these were progressively displaced in Britain, first by white-faced sheep with longer tails, and later by long-tailed, black-faced, horned sheep. The short-tailed Iron Age sheep survived in
26-401: A cattle crush ), or they may become damaged during handling. In other circumstances, horned animals may be preferred, for example, to help the animal defend itself against predators , to allow the attachment of head yokes to draught oxen , to provide a hand-hold on smaller animals such as sheep, or for aesthetic reasons – in some breeds the retention of horns is required for showing . In
39-477: Is an incompletely developed horn growth. In cattle , scurs are not attached to the skull, whereas horns are attached and have blood vessels and nerves. Scurs may also occur in sheep and goats . The gene for scurs is inherited separately from the polled gene in cattle. Not all polled animals lack the scur gene. Since horned is recessive to polled, no horned cattle carry the polled allele, but they may also carry scurs. In cattle , genetic expression of
52-409: Is discouraged as the polled locus is strongly associated with Polled Intersex Syndrome (PIS). Naturally polled water buffalo also have genital defects. Naturally polled animals may have scurs – small, loose, horny growths in the skin where their horns would be. In cattle, this trait has been traced to a separate gene (on a different chromosome ) from that responsible for polling. However,
65-642: The Scottish Highlands and Islands as the Dunface, and by the latter part of the 18th century this was still the only type of sheep found in that area. However, over the following century the Dunface continued to be displaced by long-tailed sheep: the Scottish Blackface and the Cheviot . The last flock of Dunface sheep on the mainland of Scotland is believed to have died out near Inverness about 1880. After this
78-757: The US no show requires horns to be left on. Most shows require at a minimum blunting of the horns to a minimum diameter of 1 ⁄ 2 inch. Boer Goat Shows allow disbudded goats. Dairy breeds of goats are required to be naturally hornless or disbudded. 4H and FFA show goats must be hornless or blunted so as not to be sharp and dangerous. Polled strains have been developed of many cattle breeds which were originally horned. This has usually been done by crossing with naturally polled breeds, most commonly Angus and Galloway cattle. For example, polled Jersey cattle originated in Ohio sometime prior to 1895. Two strains were developed,
91-555: The day by a boy or girl, then housed at night. Fine fleeces were valued. Polled livestock Polled livestock are livestock without horns in species which are normally horned. The term refers to both breeds and strains that are naturally polled through selective breeding and also to naturally horned animals that have been disbudded . Natural polling occurs in cattle , yaks , water buffalo , and goats , and in these animals it affects both sexes equally; in sheep , by contrast, both sexes may be horned, both polled, or only
104-659: The descendants of the Dunface survived only on remote islands ( St Kilda , Shetland and Orkney ) and as ornamental animals in parks . Dunface sheep gave rise to or contributed to several modern breeds: The Dunface was similar in origin and appearance to several other short-tailed sheep of the British Isles . These include the Manx Loaghtan of the Isle of Man , and the extinct Kerry Mountain and Cladagh of western Ireland . Dunface sheep were kept in small flocks, tended during
117-417: The development of the single-standard strain was soon followed by the appearance of a double-standard strain, founded by a few naturally hornless sports that were discovered in registered herds of horned Jersey cattle. These standards were bred among themselves or crossed with registered horned Jerseys, followed by selection for the polled head, and the strain was developed in this way. Scur A scur
130-400: The females polled. The history of breeding polled livestock starts about 6000 years BC. The archaic term muley or mulley is sometimes used to refer to hornless livestock (especially cattle) in folk songs , folk tales , and poetry , and in the name of the polled Irish Moiled cattle breed. "Muley" derives from Irish and Scottish Gaelic maol , and Welsh moel . In cattle ,
143-478: The first to appear being founded by crosses of registered Jersey bulls (the standard) on common muley (hornless) cows. These were graded up by the continued use of purebred Jersey sires, selection being made of the polled offspring of each generation, the horned progeny being discarded. Thus originated what was later known as the single-standard strain. As in the case of the Polled Shorthorns and Polled Herefords,
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#1732897995265156-460: The polled allele is genetically dominant to that for horns. The polled trait is far more common in beef breeds than in dairy breeds. CRISPR technology is being developed to create polled versions of dairy breeds. In sheep , the allele for horns in both sexes is partially dominant to the allele for being polled in both sexes, and both of these are dominant to that for polling in the female only. The development of true breeding polled goats
169-477: The presence of the allele for scurs in cattle can only be seen in a polled animal, because horns replace the scurs in horned animals. Similar scurs may also occur where disbudding of a naturally horned animal has been incomplete. Polled livestock are preferred by many farmers for a variety of reasons, the foremost being that horns can pose a physical danger to humans, other livestock and equipment. Horns may also interfere with equipment used with livestock (such as
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